from sqlalchemy import create_engine, Column, Integer, String, Float, DateTime
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker

# Database URL (e.g., SQLite, PostgreSQL, MySQL)
DATABASE_URL = "sqlite:///./instagram_ai.db"

# Create engine and session
engine = create_engine(DATABASE_URL)
SessionLocal = sessionmaker(autocommit=False, autoflush=False, bind=engine)

# Base class for models
Base = declarative_base()

# Define Post model
class Post(Base):
    __tablename__ = "posts"
    id = Column(Integer, primary_key=True, index=True)
    caption = Column(String, nullable=False)
    hashtags = Column(String)
    image_url = Column(String)
    posting_time = Column(DateTime)
    engagement_rate = Column(Float)
    viral_score = Column(Float)
    promote = Column(Integer)  # 1 for promote, 0 for don't promote

# Create tables
Base.metadata.create_all(bind=engine)